Step 1: Step 1

Step 2: Step 2

Drill the back bottom side of the can so you can put the power cable in it.

Step 3: Step 3

Then, drill the plastic cap so the power cable can go through the cup and the plastic paper cup cap turned upside down, so it can be wired to the E14 lamp socket.
Put the plastic cap on place on the thin can, and hot glue the paper cup top on it. After 2-3 minutes it should be solid dry, and hot glue the lamp socket to the paper cup top.